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|
/*
* Copyright 2016-2025 The OpenSSL Project Authors. All Rights Reserved.
*
* Licensed under the Apache License 2.0 (the "License"). You may not use
* this file except in compliance with the License. You can obtain a copy
* in the file LICENSE in the source distribution or at
* https://www.openssl.org/source/license.html
*/
#define TESTUTIL_NO_size_t_COMPARISON
#include <inttypes.h>
#include <stdbool.h>
#include <stdio.h>
#include <string.h>
#include <openssl/bio.h>
#include "internal/nelem.h"
#include "internal/numbers.h"
#include "testutil.h"
#include "testutil/output.h"
static int justprint = 0;
static const char * const fpexpected[][11][5] = {
{
/* 0.00 */ { "0.0000e+00", "0.0000", "0", "0.0000E+00", "0" },
/* 0.01 */ { "6.7000e-01", "0.6700", "0.67", "6.7000E-01", "0.67" },
/* 0.02 */ { "6.6667e-01", "0.6667", "0.6667", "6.6667E-01", "0.6667" },
/* 0.03 */ { "6.6667e-04", "0.0007", "0.0006667", "6.6667E-04", "0.0006667" },
/* 0.04 */ { "6.6667e-05", "0.0001", "6.667e-05", "6.6667E-05", "6.667E-05" },
/* 0.05 */ { "6.6667e+00", "6.6667", "6.667", "6.6667E+00", "6.667" },
/* 0.06 */ { "6.6667e+01", "66.6667", "66.67", "6.6667E+01", "66.67" },
/* 0.07 */ { "6.6667e+02", "666.6667", "666.7", "6.6667E+02", "666.7" },
/* 0.08 */ { "6.6667e+03", "6666.6667", "6667", "6.6667E+03", "6667" },
/* 0.09 */ { "6.6667e+04", "66666.6667", "6.667e+04", "6.6667E+04", "6.667E+04" },
/* 0.10 */ { "-6.6667e+04", "-66666.6667", "-6.667e+04", "-6.6667E+04", "-6.667E+04" },
},
{
/* 1.00 */ { "0.00000e+00", "0.00000", "0", "0.00000E+00", "0" },
/* 1.01 */ { "6.70000e-01", "0.67000", "0.67", "6.70000E-01", "0.67" },
/* 1.02 */ { "6.66667e-01", "0.66667", "0.66667", "6.66667E-01", "0.66667" },
/* 1.03 */ { "6.66667e-04", "0.00067", "0.00066667", "6.66667E-04", "0.00066667" },
/* 1.04 */ { "6.66667e-05", "0.00007", "6.6667e-05", "6.66667E-05", "6.6667E-05" },
/* 1.05 */ { "6.66667e+00", "6.66667", "6.6667", "6.66667E+00", "6.6667" },
/* 1.06 */ { "6.66667e+01", "66.66667", "66.667", "6.66667E+01", "66.667" },
/* 1.07 */ { "6.66667e+02", "666.66667", "666.67", "6.66667E+02", "666.67" },
/* 1.08 */ { "6.66667e+03", "6666.66667", "6666.7", "6.66667E+03", "6666.7" },
/* 1.09 */ { "6.66667e+04", "66666.66667", "66667", "6.66667E+04", "66667" },
/* 1.10 */ { "-6.66667e+04", "-66666.66667", "-66667", "-6.66667E+04", "-66667" },
},
{
/* 2.00 */ { " 0.0000e+00", " 0.0000", " 0", " 0.0000E+00", " 0" },
/* 2.01 */ { " 6.7000e-01", " 0.6700", " 0.67", " 6.7000E-01", " 0.67" },
/* 2.02 */ { " 6.6667e-01", " 0.6667", " 0.6667", " 6.6667E-01", " 0.6667" },
/* 2.03 */ { " 6.6667e-04", " 0.0007", " 0.0006667", " 6.6667E-04", " 0.0006667" },
/* 2.04 */ { " 6.6667e-05", " 0.0001", " 6.667e-05", " 6.6667E-05", " 6.667E-05" },
/* 2.05 */ { " 6.6667e+00", " 6.6667", " 6.667", " 6.6667E+00", " 6.667" },
/* 2.06 */ { " 6.6667e+01", " 66.6667", " 66.67", " 6.6667E+01", " 66.67" },
/* 2.07 */ { " 6.6667e+02", " 666.6667", " 666.7", " 6.6667E+02", " 666.7" },
/* 2.08 */ { " 6.6667e+03", " 6666.6667", " 6667", " 6.6667E+03", " 6667" },
/* 2.09 */ { " 6.6667e+04", " 66666.6667", " 6.667e+04", " 6.6667E+04", " 6.667E+04" },
/* 2.10 */ { " -6.6667e+04", " -66666.6667", " -6.667e+04", " -6.6667E+04", " -6.667E+04" },
},
{
/* 3.00 */ { " 0.00000e+00", " 0.00000", " 0", " 0.00000E+00", " 0" },
/* 3.01 */ { " 6.70000e-01", " 0.67000", " 0.67", " 6.70000E-01", " 0.67" },
/* 3.02 */ { " 6.66667e-01", " 0.66667", " 0.66667", " 6.66667E-01", " 0.66667" },
/* 3.03 */ { " 6.66667e-04", " 0.00067", " 0.00066667", " 6.66667E-04", " 0.00066667" },
/* 3.04 */ { " 6.66667e-05", " 0.00007", " 6.6667e-05", " 6.66667E-05", " 6.6667E-05" },
/* 3.05 */ { " 6.66667e+00", " 6.66667", " 6.6667", " 6.66667E+00", " 6.6667" },
/* 3.06 */ { " 6.66667e+01", " 66.66667", " 66.667", " 6.66667E+01", " 66.667" },
/* 3.07 */ { " 6.66667e+02", " 666.66667", " 666.67", " 6.66667E+02", " 666.67" },
/* 3.08 */ { " 6.66667e+03", " 6666.66667", " 6666.7", " 6.66667E+03", " 6666.7" },
/* 3.09 */ { " 6.66667e+04", " 66666.66667", " 66667", " 6.66667E+04", " 66667" },
/* 3.10 */ { "-6.66667e+04", "-66666.66667", " -66667", "-6.66667E+04", " -66667" },
},
{
/* 4.00 */ { "0e+00", "0", "0", "0E+00", "0" },
/* 4.01 */ { "7e-01", "1", "0.7", "7E-01", "0.7" },
/* 4.02 */ { "7e-01", "1", "0.7", "7E-01", "0.7" },
/* 4.03 */ { "7e-04", "0", "0.0007", "7E-04", "0.0007" },
/* 4.04 */ { "7e-05", "0", "7e-05", "7E-05", "7E-05" },
/* 4.05 */ { "7e+00", "7", "7", "7E+00", "7" },
/* 4.06 */ { "7e+01", "67", "7e+01", "7E+01", "7E+01" },
/* 4.07 */ { "7e+02", "667", "7e+02", "7E+02", "7E+02" },
/* 4.08 */ { "7e+03", "6667", "7e+03", "7E+03", "7E+03" },
/* 4.09 */ { "7e+04", "66667", "7e+04", "7E+04", "7E+04" },
/* 4.10 */ { "-7e+04", "-66667", "-7e+04", "-7E+04", "-7E+04" },
},
{
/* 5.00 */ { "0.000000e+00", "0.000000", "0", "0.000000E+00", "0" },
/* 5.01 */ { "6.700000e-01", "0.670000", "0.67", "6.700000E-01", "0.67" },
/* 5.02 */ { "6.666667e-01", "0.666667", "0.666667", "6.666667E-01", "0.666667" },
/* 5.03 */ { "6.666667e-04", "0.000667", "0.000666667", "6.666667E-04", "0.000666667" },
/* 5.04 */ { "6.666667e-05", "0.000067", "6.66667e-05", "6.666667E-05", "6.66667E-05" },
/* 5.05 */ { "6.666667e+00", "6.666667", "6.66667", "6.666667E+00", "6.66667" },
/* 5.06 */ { "6.666667e+01", "66.666667", "66.6667", "6.666667E+01", "66.6667" },
/* 5.07 */ { "6.666667e+02", "666.666667", "666.667", "6.666667E+02", "666.667" },
/* 5.08 */ { "6.666667e+03", "6666.666667", "6666.67", "6.666667E+03", "6666.67" },
/* 5.09 */ { "6.666667e+04", "66666.666667", "66666.7", "6.666667E+04", "66666.7" },
/* 5.10 */ { "-6.666667e+04", "-66666.666667", "-66666.7", "-6.666667E+04", "-66666.7" },
},
{
/* 6.00 */ { "0.0000e+00", "000.0000", "00000000", "0.0000E+00", "00000000" },
/* 6.01 */ { "6.7000e-01", "000.6700", "00000.67", "6.7000E-01", "00000.67" },
/* 6.02 */ { "6.6667e-01", "000.6667", "000.6667", "6.6667E-01", "000.6667" },
/* 6.03 */ { "6.6667e-04", "000.0007", "0.0006667", "6.6667E-04", "0.0006667" },
/* 6.04 */ { "6.6667e-05", "000.0001", "6.667e-05", "6.6667E-05", "6.667E-05" },
/* 6.05 */ { "6.6667e+00", "006.6667", "0006.667", "6.6667E+00", "0006.667" },
/* 6.06 */ { "6.6667e+01", "066.6667", "00066.67", "6.6667E+01", "00066.67" },
/* 6.07 */ { "6.6667e+02", "666.6667", "000666.7", "6.6667E+02", "000666.7" },
/* 6.08 */ { "6.6667e+03", "6666.6667", "00006667", "6.6667E+03", "00006667" },
/* 6.09 */ { "6.6667e+04", "66666.6667", "6.667e+04", "6.6667E+04", "6.667E+04" },
/* 6.10 */ { "-6.6667e+04", "-66666.6667", "-6.667e+04", "-6.6667E+04", "-6.667E+04" },
},
};
enum arg_type {
AT_NONE = 0,
AT_CHAR, AT_SHORT, AT_INT, AT_LONG, AT_LLONG,
/* The ones below are used in n_data only so far */
AT_SIZE, AT_PTRDIFF, AT_STR,
};
static const struct int_data {
union {
unsigned char hh;
unsigned short h;
unsigned int i;
unsigned long l;
unsigned long long ll;
} value;
enum arg_type type;
const char *format;
const char *expected;
bool skip_libc_check;
/* Since OpenSSL's snprintf is non-standard on buffer overflow */
bool skip_libc_ret_check;
int exp_ret;
} int_data[] = {
{ { .hh = 0x42 }, AT_CHAR, "%+hhu", "66" },
{ { .hh = 0x88 }, AT_CHAR, "%hhd", "-120" },
{ { .hh = 0x0 }, AT_CHAR, "%hho", "0" },
{ { .hh = 0x0 }, AT_CHAR, "%#hho", "0" },
{ { .hh = 0x1 }, AT_CHAR, "%hho", "1" },
{ { .hh = 0x1 }, AT_CHAR, "%#hho", "01" },
{ { .hh = 0x0 }, AT_CHAR, "%+hhx", "0" },
{ { .hh = 0x0 }, AT_CHAR, "%#hhx", "0" },
{ { .hh = 0xf }, AT_CHAR, "%hhx", "f" },
{ { .hh = 0xe }, AT_CHAR, "%hhX", "E" },
{ { .hh = 0xd }, AT_CHAR, "%#hhx", "0xd" },
{ { .hh = 0xc }, AT_CHAR, "%#hhX", "0XC" },
{ { .hh = 0xb }, AT_CHAR, "%#04hhX", "0X0B" },
{ { .hh = 0xa }, AT_CHAR, "%#-015hhx", "0xa " },
{ { .hh = 0x9 }, AT_CHAR, "%#+01hho", "011" },
{ { .hh = 0x8 }, AT_CHAR, "%#09hho", "000000010" },
{ { .hh = 0x7 }, AT_CHAR, "%#+ 9hhi", " +7" },
{ { .hh = 0x6 }, AT_CHAR, "%# 9hhd", " 6" },
{ { .hh = 0x95 }, AT_CHAR, "%#06hhi", "-00107" },
{ { .hh = 0x4 }, AT_CHAR, "%# hhd", " 4" },
{ { .hh = 0x3 }, AT_CHAR, "%# hhu", "3" },
{ { .hh = 0x0 }, AT_CHAR, "%02hhx", "00" },
{ { .h = 0 }, AT_SHORT, "|%.0hd|", "||" },
{ { .h = 0 }, AT_SHORT, "|%.hu|", "||" },
{ { .h = 0 }, AT_SHORT, "|%#.ho|", "|0|" },
{ { .h = 1 }, AT_SHORT, "%4.2hi", " 01" },
{ { .h = 2 }, AT_SHORT, "%-4.3hu", "002 " },
{ { .h = 3 }, AT_SHORT, "%+.3hu", "003" },
{ { .h = 9 }, AT_SHORT, "%#5.2ho", " 011" },
{ { .h = 0xf }, AT_SHORT, "%#-6.2hx", "0x0f " },
{ { .h = 0xaa }, AT_SHORT, "%#8.0hX", " 0XAA" },
{ { .h = 0xdead }, AT_SHORT, "%#hi", "-8531" },
{ { .h = 0xcafe }, AT_SHORT, "%#0.1hX", "0XCAFE" },
{ { .h = 0xbeef }, AT_SHORT, "%#012.8ho", " 00137357" },
{ { .h = 0xbeef }, AT_SHORT, "%#000000000000000000012.ho", " 0137357" },
{ { .h = 0xbeef }, AT_SHORT, "%012.ho", " 137357" },
{ { .h = 0xfade }, AT_SHORT, "%#012ho", "000000175336" },
{ { .h = 0xfaff }, AT_SHORT, "%#-012ho", "0175377 " },
{ { .h = 0xbea7 }, AT_SHORT, "%#-012.8ho", "00137247 " },
{ { .i = 0 }, AT_INT, "-%#+.0u-", "--" },
{ { .i = 0 }, AT_INT, "-%-8.u-", "- -" },
{ { .i = 0xdeadc0de }, AT_INT, "%#+67.65i",
" -0000000000000000000000000000000000000000000000000000000055903",
.skip_libc_ret_check = true, .exp_ret = -1 },
{ { .i = 0xfeedface }, AT_INT, "%#+70.10X",
" 0X00F",
.skip_libc_ret_check = true, .exp_ret = -1 },
{ { .i = 0xdecaffee }, AT_INT, "%76.15o",
" 00",
.skip_libc_ret_check = true, .exp_ret = -1 },
{ { .i = 0x5ad }, AT_INT, "%#67.x",
" 0",
.skip_libc_ret_check = true, .exp_ret = -1 },
{ { .i = 0x1337 }, AT_INT, "|%2147483639.x|",
"| ",
.skip_libc_ret_check = true, .exp_ret = -1 },
{ { .i = 0x1337 }, AT_INT, "|%.2147483639x|",
"|00000000000000000000000000000000000000000000000000000000000000",
#if defined(OPENSSL_SYS_WINDOWS)
/* MS CRT can't handle this one, snprintf() causes access violation. */
.skip_libc_check = true,
#endif
.skip_libc_ret_check = true, .exp_ret = -1 },
/*
* We treat the following three format strings as errneous and bail out
* mid-string.
*/
{ { .i = 0x1337 }, AT_INT, "|%2147483647.x|", "|",
.skip_libc_check = true, .exp_ret = -1 },
{ { .i = 0x1337 }, AT_INT,
"abcdefghijklmnopqrstuvwxyz0123456789ZYXWVUTSRQPONMLKJIHGFEDCBA"
"|%4294967295.x|",
"abcdefghijklmnopqrstuvwxyz0123456789ZYXWVUTSRQPONMLKJIHGFEDCBA|",
.skip_libc_check = true, .exp_ret = -1 },
{ { .i = 0x1337 }, AT_INT, "%4294967302.x", "",
.skip_libc_check = true, .exp_ret = -1 },
{ { .i = 0xbeeface }, AT_INT, "%#+-12.1d", "+200211150 " },
{ { .l = 0 }, AT_LONG, "%%%#.0lo%%", "%0%" },
{ { .l = 0 }, AT_LONG, "%%%.0lo%%", "%%" },
{ { .l = 0 }, AT_LONG, "%%%-.0lo%%", "%%" },
{ { .l = 0xfacefed }, AT_LONG, "%#-1.14ld", "00000262991853" },
{ { .l = 0xdefaced }, AT_LONG, "%#+-014.11li", "+00233811181 " },
{ { .l = 0xfacade }, AT_LONG, "%#0.14lo", "00000076545336" },
{ { .l = 0 }, AT_LONG, "%#0.14lo", "00000000000000" },
{ { .l = 0xfacade }, AT_LONG, "%#0.14lx", "0x00000000facade" },
{ { .ll = 0 }, AT_LLONG, "#%#.0llx#", "##" },
{ { .ll = 0 }, AT_LLONG, "#%.0llx#", "##" },
{ { .ll = 0xffffFFFFffffFFFFULL }, AT_LLONG, "%#-032llo",
"01777777777777777777777 " },
{ { .ll = 0xbadc0deddeadfaceULL }, AT_LLONG, "%022lld",
"-004982091772484257074" },
};
static int test_int(int i)
{
char bio_buf[64];
char std_buf[64];
int bio_ret;
int std_ret = 0;
const struct int_data *data = int_data + i;
const int exp_ret = data->exp_ret ? data->exp_ret
: (int) strlen(data->expected);
memset(bio_buf, '@', sizeof(bio_buf));
memset(std_buf, '#', sizeof(std_buf));
switch (data->type) {
#define DO_PRINT(field_) \
do { \
bio_ret = BIO_snprintf(bio_buf, sizeof(bio_buf), data->format, \
data->value.field_); \
if (!data->skip_libc_check) \
std_ret = snprintf(std_buf, sizeof(std_buf), data->format, \
data->value.field_); \
} while (0)
case AT_CHAR:
DO_PRINT(hh);
break;
case AT_SHORT:
DO_PRINT(h);
break;
case AT_INT:
DO_PRINT(i);
break;
case AT_LONG:
DO_PRINT(l);
break;
case AT_LLONG:
DO_PRINT(ll);
break;
default:
TEST_error("Unexpected arg type: %d", data->type);
return 0;
#undef DO_PRINT
}
if (!TEST_str_eq(bio_buf, data->expected)
+ !TEST_int_eq(bio_ret, exp_ret)) {
TEST_note("Format: \"%s\"", data->format);
return 0;
}
/*
* We treat the unexpected discrepancies with libc results as notable,
* but not fatal.
*/
if (!data->skip_libc_check) {
if (!TEST_str_eq(bio_buf, std_buf)
+ !(data->skip_libc_ret_check || TEST_int_eq(bio_ret, std_ret))) {
TEST_note("Format: \"%s\"", data->format);
#if defined(OPENSSL_STRICT_LIBC_PRINTF_CHECK)
return 0;
#endif
}
}
return 1;
}
union ptrint {
uintptr_t i;
const char *s;
};
static const struct wp_data {
union ptrint value;
const char *format;
const char *expected;
int num_args;
int arg1;
int arg2;
bool skip_libc_check;
/* Since OpenSSL's snprintf is non-standard on buffer overflow */
bool skip_libc_ret_check;
int exp_ret;
} wp_data[] = {
/* Integer checks with width/precision provided via arguments */
{ { .i = 01234 }, "%#*" PRIoPTR, " 01234", 1, 12 },
{ { .i = 01234 }, "%#.*" PRIxPTR, "0x00000000029c", 1, 12 },
{ { .i = 0 }, "|%#*" PRIoPTR "|", "| 0|", 1, 2 },
{ { .i = 0 }, "|%#.*" PRIoPTR "|", "|00|", 1, 2 },
{ { .i = 0 }, "|%#.*" PRIoPTR "|", "|0|", 1, 1 },
{ { .i = 0 }, "|%#.*" PRIoPTR "|", "|0|", 1, 0 },
{ { .i = 0 }, "|%.*" PRIoPTR "|", "||", 1, 0 },
{ { .i = 0 }, "|%#.*" PRIoPTR "|", "|0|", 1, -12 },
{ { .i = 0 }, "|%#.*" PRIxPTR "|", "||", 1, 0 },
{ { .i = 0 }, "|%#.*" PRIxPTR "|", "|0|", 1, -12 },
{ { .i = 1 }, "|%#.*" PRIxPTR "|", "|0x1|", 1, -12 },
{ { .i = 0 }, "|%#*.*" PRIxPTR "|", "| |", 2, 12, 0 },
{ { .i = 1234 }, "|%*.*" PRIuPTR "|", "| 001234|", 2, 12, 6 },
/* FreeBSD's libc bails out on the following three */
{ { .i = 1337 }, "|%*" PRIuPTR "|",
"| ",
1, 2147483647, .skip_libc_check = true, .exp_ret = -1 },
{ { .i = 1337 }, "|%.*" PRIuPTR "|",
"|00000000000000000000000000000000000000000000000000000000000000",
1, 2147483647, .skip_libc_check = true, .exp_ret = -1 },
{ { .i = 1337 }, "|%#*.*" PRIoPTR "|",
"| 0",
2, 2147483647, 2147483586, .skip_libc_check = true, .exp_ret = -1 },
/* String width/precision checks */
{ { .s = "01234" }, "%12s", " 01234" },
{ { .s = "01234" }, "%-12s", "01234 " },
{ { .s = "01234" }, "%.12s", "01234" },
{ { .s = "01234" }, "%.2s", "01" },
{ { .s = "abc" }, "%*s", " abc", 1, 12 },
{ { .s = "abc" }, "%*s", "abc ", 1, -12 },
{ { .s = "abc" }, "%-*s", "abc ", 1, 12 },
{ { .s = "abc" }, "%-*s", "abc ", 1, -12 },
{ { .s = "ABC" }, "%*.*s", " ABC", 2, 12, 5 },
{ { .s = "ABC" }, "%*.*s", "AB ", 2, -12, 2 },
{ { .s = "ABC" }, "%-*.*s", "ABC ", 2, 12, -5 },
{ { .s = "ABC" }, "%-*.*s", "ABC ", 2, -12, -2 },
{ { .s = "def" }, "%.*s", "def", 1, 12 },
{ { .s = "%%s0123456789" }, "%.*s", "%%s01", 1, 5 },
{ { .s = "9876543210" }, "|%-61s|",
"|9876543210 |" },
{ { .s = "0123456789" }, "|%62s|",
"| 0123456789",
.skip_libc_ret_check = true, .exp_ret = -1 },
{ { .s = "DEF" }, "%-2147483639s",
"DEF ",
.skip_libc_check = true, .exp_ret = -1 },
{ { .s = "DEF" }, "%-2147483640s", "",
.skip_libc_check = true, .exp_ret = -1 },
{ { .s = "DEF" }, "%*s",
" ",
1, 2147483647, .skip_libc_check = true, .exp_ret = -1 },
};
static int test_width_precision(int i)
{
char bio_buf[64];
char std_buf[64];
int bio_ret;
int std_ret = 0;
const struct wp_data *data = wp_data + i;
const int exp_ret = data->exp_ret ? data->exp_ret
: (int) strlen(data->expected);
memset(bio_buf, '@', sizeof(bio_buf));
memset(std_buf, '#', sizeof(std_buf));
switch (data->num_args) {
case 2:
bio_ret = BIO_snprintf(bio_buf, sizeof(bio_buf), data->format,
data->arg1, data->arg2, data->value.i);
if (!data->skip_libc_check)
std_ret = snprintf(std_buf, sizeof(std_buf), data->format,
data->arg1, data->arg2, data->value.i);
break;
case 1:
bio_ret = BIO_snprintf(bio_buf, sizeof(bio_buf), data->format,
data->arg1, data->value.i);
if (!data->skip_libc_check)
std_ret = snprintf(std_buf, sizeof(std_buf), data->format,
data->arg1, data->value.i);
break;
case 0:
default:
bio_ret = BIO_snprintf(bio_buf, sizeof(bio_buf), data->format,
data->value.i);
if (!data->skip_libc_check)
std_ret = snprintf(std_buf, sizeof(std_buf), data->format,
data->value.i);
}
if (!TEST_str_eq(bio_buf, data->expected)
+ !TEST_int_eq(bio_ret, exp_ret)) {
TEST_note("Format: \"%s\"", data->format);
return 0;
}
/*
* We treat the unexpected discrepancies with libc results as notable,
* but not fatal, unless OPENSSL_STRICT_PRINTF_COMPLIANCE_CHECK is defined.
*/
if (!data->skip_libc_check) {
if (!TEST_str_eq(bio_buf, std_buf)
+ !(data->skip_libc_ret_check || TEST_int_eq(bio_ret, std_ret))) {
TEST_note("Format: \"%s\"", data->format);
#if defined(OPENSSL_STRICT_LIBC_PRINTF_CHECK)
return 0;
#endif
}
}
return 1;
}
static const struct n_data {
const char *format;
const char *expected;
enum arg_type n_type;
const uint64_t exp_n;
enum arg_type arg1_type;
union ptrint arg1;
enum arg_type arg2_type;
union ptrint arg2;
bool skip_libc_check;
/* Since OpenSSL's snprintf is non-standard on buffer overflow */
bool skip_libc_ret_check;
int exp_ret;
} n_data[] = {
{ "%n", "", AT_INT, 0, AT_NONE },
{ "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz%n",
"0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz",
AT_INT, 62, AT_NONE },
{ "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz+=%n",
"0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz+",
AT_INT, 64, AT_NONE, .skip_libc_ret_check = true, .exp_ret = -1 },
{ "%" PRIdPTR "%hhn", "1234567890",
AT_CHAR, 10, AT_INT, { .i = 1234567890 } },
{ "%#.200" PRIXPTR "%hhn",
"0X0000000000000000000000000000000000000000000000000000000000000",
AT_CHAR, -54, AT_INT, { .i = 1234567890 },
.skip_libc_ret_check = true, .exp_ret = -1 },
{ "%#10000" PRIoPTR "%hhn1234567890",
" ",
/* XXX Should we overflow or saturate? glibc does the former. */
AT_CHAR, 16, AT_INT, { .i = 1234567890 },
.skip_libc_ret_check = true, .exp_ret = -1 },
{ "%.0s%hn0987654321", "0987654321",
AT_SHORT, 0, AT_INT, { .s = "1234567890" } },
{ "%-123456s%hn0987654321",
"1234567890 ",
AT_SHORT, -7616, AT_INT, { .s = "1234567890" },
.skip_libc_ret_check = true, .exp_ret = -1 },
{ "%1234567898.1234567890" PRIxPTR "%n",
" 0000000000000000000000000000000000000000000000000000000",
AT_INT, 1234567898, AT_INT, { .i = 0xbadc0ded },
#if defined(OPENSSL_SYS_WINDOWS)
/* MS CRT can't handle this one, snprintf() causes access violation. */
.skip_libc_check = true,
#endif
.skip_libc_ret_check = true, .exp_ret = -1 },
{ "%s|%n",
"0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ|",
AT_INT, 63, AT_STR, { .s =
"0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ" } },
{ "|%#2147483639x|%2147483639s|0123456789abcdef|%ln",
"| ",
AT_LONG, sizeof(long) == 8 ? 4294967298ULL : 2,
AT_INT, { .i = 0x1337 }, AT_STR, { .s = "1EE7" },
/* glibc caps %n value (1 << 32) - 1 */
.skip_libc_check = true, .exp_ret = -1 },
{ "|%-2147483638s|0123456789abcdef|%02147483637o|0123456789ABCDEF|%lln",
"|echo test test test ",
AT_LLONG, 4294967312ULL,
AT_STR, { .s = "echo test test test" }, AT_INT, { .i = 0xbad },
/* glibc caps %n value (1 << 32) - 1 */
.skip_libc_check = true, .exp_ret = -1 },
{ "|%+2147483639s|2147483639|%.2147483639u|2147483639|%zn",
"| ",
AT_SIZE, sizeof(size_t) == 8 ? 4294967303ULL : 7,
AT_STR, { .s = "according to all known laws of aviation" },
AT_INT, { .i = 0xbee },
/* glibc caps %n value (1 << 32) - 1 */
.skip_libc_check = true, .exp_ret = -1 },
{ "==%2147483639.2147483639s==2147483639.2147483639==%+2147483639d==%tn==",
"== ",
AT_PTRDIFF, sizeof(ptrdiff_t) == 8 ? 4294967307ULL : 11,
AT_STR, { .s = "oh hi there hello" }, AT_INT, { .i = 0x1234 },
/* glibc caps %n value (1 << 32) - 1 */
.skip_libc_check = true, .exp_ret = -1 },
{ "=%2147483639s=%888888888X=%tn=",
"= ",
AT_PTRDIFF, sizeof(ptrdiff_t) == 8 ? 3036372530LL : -1258594766LL,
AT_STR, { .s = NULL }, AT_INT, { .i = 0xdead },
.skip_libc_check = true, .exp_ret = -1 },
};
static int test_n(int i)
{
const struct n_data *data = n_data + i;
const int exp_ret = data->exp_ret ? data->exp_ret
: (int) strlen(data->expected);
char bio_buf[64];
char std_buf[64];
int bio_ret;
int std_ret = 0;
bool skip_libc_check = data->skip_libc_check;
union {
uint64_t val;
signed char hh;
short h;
int i;
long int l;
long long int ll;
ossl_ssize_t z;
ptrdiff_t t;
} n = { 0 }, std_n = { 0 };
#if defined(OPENSSL_SYS_WINDOWS)
/*
* MS CRT is special and throws an exception when %n is used even
* in non-*_s versions of printf routines, and there is a special function
* to enable %n handling.
*/
_set_printf_count_output(1);
if (_get_printf_count_output() == 0) {
TEST_note("Can't enable %%n handling for snprintf"
", skipping the checks against libc");
skip_libc_check = true;
}
#elif defined(__OpenBSD__)
{
static bool note_printed;
if (!note_printed) {
TEST_note("OpenBSD libc unconditionally terminates a program "
"if %%n is used in a *printf routine"
", skipping the checks against libc");
note_printed = true;
}
skip_libc_check = true;
}
#endif /* defined(OPENSSL_SYS_WINDOWS) || defined(__OpenBSD__) */
memset(bio_buf, '@', sizeof(bio_buf));
memset(std_buf, '#', sizeof(std_buf));
switch (data->n_type) {
#define DO_PRINT(field_) \
do { \
if (data->arg1_type == AT_NONE) { \
bio_ret = BIO_snprintf(bio_buf, sizeof(bio_buf), data->format, \
&n.field_); \
if (!skip_libc_check) \
std_ret = snprintf(std_buf, sizeof(std_buf), data->format, \
&std_n.field_); \
} else if (data->arg2_type == AT_NONE) { \
bio_ret = BIO_snprintf(bio_buf, sizeof(bio_buf), data->format, \
data->arg1.i, &n.field_); \
if (!skip_libc_check) \
std_ret = snprintf(std_buf, sizeof(std_buf), data->format, \
data->arg1.i, &std_n.field_); \
} else { \
bio_ret = BIO_snprintf(bio_buf, sizeof(bio_buf), data->format, \
data->arg1.i, data->arg2.i, &n.field_); \
if (!skip_libc_check) \
std_ret = snprintf(std_buf, sizeof(std_buf), data->format, \
data->arg1.i, data->arg2.i, &std_n.field_); \
} \
n.val = n.field_; \
std_n.val = std_n.field_; \
} while (0)
case AT_CHAR:
DO_PRINT(hh);
break;
case AT_SHORT:
DO_PRINT(h);
break;
case AT_INT:
DO_PRINT(i);
break;
case AT_LONG:
DO_PRINT(l);
break;
case AT_LLONG:
DO_PRINT(ll);
break;
case AT_SIZE:
DO_PRINT(z);
break;
case AT_PTRDIFF:
DO_PRINT(t);
break;
default:
TEST_error("Unexpected arg type: %d", data->n_type);
return 0;
#undef DO_PRINT
}
if (!TEST_str_eq(bio_buf, data->expected)
+ !TEST_uint64_t_eq(n.val, data->exp_n)
+ !TEST_int_eq(bio_ret, exp_ret)) {
TEST_note("Format: \"%s\"", data->format);
return 0;
}
/*
* We treat the unexpected discrepancies with libc results as notable,
* but not fatal.
*/
if (!data->skip_libc_check) {
if (!TEST_str_eq(bio_buf, std_buf)
+ !TEST_uint64_t_eq(n.val, std_n.val)
+ !(data->skip_libc_ret_check || TEST_int_eq(bio_ret, std_ret))) {
TEST_note("Format: \"%s\"", data->format);
#if defined(OPENSSL_STRICT_LIBC_PRINTF_CHECK)
return 0;
#endif
}
}
return 1;
}
typedef struct z_data_st {
size_t value;
const char *format;
const char *expected;
} z_data;
static const z_data zu_data[] = {
{ SIZE_MAX, "%zu", (sizeof(size_t) == 4 ? "4294967295"
: sizeof(size_t) == 8 ? "18446744073709551615"
: "") },
/*
* in 2-complement, the unsigned number divided by two plus one becomes the
* smallest possible negative signed number of the corresponding type
*/
{ SIZE_MAX / 2 + 1, "%zi", (sizeof(size_t) == 4 ? "-2147483648"
: sizeof(size_t) == 8 ? "-9223372036854775808"
: "") },
{ 0, "%zu", "0" },
{ 0, "%zi", "0" },
};
static int test_zu(int i)
{
char bio_buf[80];
char std_buf[80];
const z_data *data = &zu_data[i];
const int exp_ret = (int) strlen(data->expected);
int bio_ret;
int std_ret;
memset(bio_buf, '@', sizeof(bio_buf));
memset(std_buf, '#', sizeof(std_buf));
bio_ret = BIO_snprintf(bio_buf, sizeof(bio_buf), data->format, data->value);
std_ret = snprintf(std_buf, sizeof(std_buf), data->format, data->value);
if (!TEST_str_eq(bio_buf, data->expected)
+ !TEST_int_eq(bio_ret, exp_ret))
return 0;
/*
* We treat the unexpected discrepancies with libc results as notable,
* but not fatal.
*/
if (!TEST_str_eq(bio_buf, std_buf)
+ !TEST_int_eq(bio_ret, std_ret)) {
TEST_note("Format: \"%s\"", data->format);
#if defined(OPENSSL_STRICT_LIBC_PRINTF_CHECK)
return 0;
#endif
}
return 1;
}
static const struct t_data {
size_t value;
const char *format;
const char *expected;
} t_data[] = {
{ PTRDIFF_MAX, "%+td",
sizeof(ptrdiff_t) == 4 ? "+2147483647" : "+9223372036854775807" },
{ PTRDIFF_MIN, "%+ti",
sizeof(ptrdiff_t) == 4 ? "-2147483648" : "-9223372036854775808" },
{ 0, "%tu", "0" },
{ 0, "%+09ti", "+00000000" },
};
static int test_t(int i)
{
char bio_buf[64];
char std_buf[64];
const struct t_data *data = &t_data[i];
const int exp_ret = (int) strlen(data->expected);
int bio_ret;
int std_ret;
memset(bio_buf, '@', sizeof(bio_buf));
memset(std_buf, '#', sizeof(std_buf));
bio_ret = BIO_snprintf(bio_buf, sizeof(bio_buf), data->format, data->value);
std_ret = snprintf(std_buf, sizeof(std_buf), data->format, data->value);
if (!TEST_str_eq(bio_buf, data->expected)
+ !TEST_int_eq(bio_ret, exp_ret))
return 0;
/*
* We treat the unexpected discrepancies with libc results as notable,
* but not fatal.
*/
if (!TEST_str_eq(bio_buf, std_buf)
+ !TEST_int_eq(bio_ret, std_ret)) {
TEST_note("Format: \"%s\"", data->format);
#if defined(OPENSSL_STRICT_LIBC_PRINTF_CHECK)
return 0;
#endif
}
return 1;
}
typedef struct j_data_st {
uint64_t value;
const char *format;
const char *expected;
} j_data;
static const j_data jf_data[] = {
{ 0xffffffffffffffffULL, "%ju", "18446744073709551615" },
{ 0xffffffffffffffffULL, "%jx", "ffffffffffffffff" },
{ 0x8000000000000000ULL, "%ju", "9223372036854775808" },
/*
* These tests imply two's complement, but it's the only binary
* representation we support, see test/sanitytest.c...
*/
{ 0x8000000000000000ULL, "%ji", "-9223372036854775808" },
};
static int test_j(int i)
{
const j_data *data = &jf_data[i];
char bio_buf[80];
char std_buf[80];
const int exp_ret = (int) strlen(data->expected);
int bio_ret;
int std_ret;
memset(bio_buf, '@', sizeof(bio_buf));
memset(std_buf, '#', sizeof(std_buf));
bio_ret = BIO_snprintf(bio_buf, sizeof(bio_buf), data->format, data->value);
std_ret = snprintf(std_buf, sizeof(std_buf), data->format, data->value);
if (!TEST_str_eq(bio_buf, data->expected)
+ !TEST_int_eq(bio_ret, exp_ret))
return 0;
/*
* We treat the unexpected discrepancies with libc results as notable,
* but not fatal.
*/
if (!TEST_str_eq(bio_buf, std_buf)
+ !TEST_int_eq(bio_ret, std_ret)) {
TEST_note("Format: \"%s\"", data->format);
#if defined(OPENSSL_STRICT_LIBC_PRINTF_CHECK)
return 0;
#endif
}
return 1;
}
/* Precision and width. */
typedef struct pw_st {
int p;
const char *w;
} pw;
static const pw pw_params[] = {
{ 4, "" },
{ 5, "" },
{ 4, "12" },
{ 5, "12" },
{ 0, "" },
{ -1, "" },
{ 4, "08" }
};
static int dofptest(int test, int sub, double val, const char *width, int prec)
{
static const char *fspecs[] = {
"e", "f", "g", "E", "G"
};
char format[80], result[80], std_result[80];
int ret = 1, i;
int exp_ret;
int bio_ret;
int std_ret;
for (i = 0; i < (int)OSSL_NELEM(fspecs); i++) {
const char *fspec = fspecs[i];
memset(result, '@', sizeof(result));
memset(std_result, '#', sizeof(std_result));
if (prec >= 0)
BIO_snprintf(format, sizeof(format), "%%%s.%d%s", width, prec,
fspec);
else
BIO_snprintf(format, sizeof(format), "%%%s%s", width, fspec);
exp_ret = (int) strlen(fpexpected[test][sub][i]);
bio_ret = BIO_snprintf(result, sizeof(result), format, val);
std_ret = snprintf(std_result, sizeof(std_result), format, val);
if (justprint) {
if (i == 0)
printf(" /* %d.%02d */ { \"%s\"", test, sub, result);
else
printf(", \"%s\"", result);
} else {
if (!TEST_str_eq(fpexpected[test][sub][i], result)
+ !TEST_int_eq(bio_ret, exp_ret)) {
TEST_info("test %d format=|%s| exp=|%s|, ret=|%s|"
", stdlib_ret=|%s|",
test, format, fpexpected[test][sub][i], result,
std_result);
ret = 0;
}
/*
* We treat the unexpected discrepancies with libc results as notable,
* but not fatal.
*/
if (!TEST_str_eq(result, std_result)
+ !TEST_int_eq(bio_ret, std_ret)) {
TEST_info("test %d format=|%s| exp=|%s|, ret=|%s|"
", stdlib_ret=|%s|",
test, format, fpexpected[test][sub][i], result,
std_result);
#if defined(OPENSSL_STRICT_LIBC_PRINTF_CHECK)
ret = 0;
#endif
}
}
}
if (justprint)
printf(" },\n");
return ret;
}
static int test_fp(int i)
{
int t = 0, r;
const double frac = 2.0 / 3.0;
const pw *pwp = &pw_params[i];
if (justprint)
printf(" {\n");
r = TEST_true(dofptest(i, t++, 0.0, pwp->w, pwp->p))
&& TEST_true(dofptest(i, t++, 0.67, pwp->w, pwp->p))
&& TEST_true(dofptest(i, t++, frac, pwp->w, pwp->p))
&& TEST_true(dofptest(i, t++, frac / 1000, pwp->w, pwp->p))
&& TEST_true(dofptest(i, t++, frac / 10000, pwp->w, pwp->p))
&& TEST_true(dofptest(i, t++, 6.0 + frac, pwp->w, pwp->p))
&& TEST_true(dofptest(i, t++, 66.0 + frac, pwp->w, pwp->p))
&& TEST_true(dofptest(i, t++, 666.0 + frac, pwp->w, pwp->p))
&& TEST_true(dofptest(i, t++, 6666.0 + frac, pwp->w, pwp->p))
&& TEST_true(dofptest(i, t++, 66666.0 + frac, pwp->w, pwp->p))
&& TEST_true(dofptest(i, t++, -66666.0 - frac, pwp->w, pwp->p));
if (justprint)
printf(" },\n");
return r;
}
static int test_big(void)
{
char buf[80];
/* Test excessively big number. Should fail */
if (!TEST_int_eq(BIO_snprintf(buf, sizeof(buf),
"%f\n", 2 * (double)ULONG_MAX), -1))
return 0;
return 1;
}
typedef enum OPTION_choice {
OPT_ERR = -1,
OPT_EOF = 0,
OPT_PRINT,
OPT_TEST_ENUM
} OPTION_CHOICE;
const OPTIONS *test_get_options(void)
{
static const OPTIONS options[] = {
OPT_TEST_OPTIONS_DEFAULT_USAGE,
{ "expected", OPT_PRINT, '-', "Output values" },
{ NULL }
};
return options;
}
int setup_tests(void)
{
OPTION_CHOICE o;
while ((o = opt_next()) != OPT_EOF) {
switch (o) {
case OPT_PRINT:
justprint = 1;
break;
case OPT_TEST_CASES:
break;
default:
return 0;
}
}
ADD_TEST(test_big);
ADD_ALL_TESTS(test_fp, OSSL_NELEM(pw_params));
ADD_ALL_TESTS(test_int, OSSL_NELEM(int_data));
ADD_ALL_TESTS(test_width_precision, OSSL_NELEM(wp_data));
ADD_ALL_TESTS(test_n, OSSL_NELEM(n_data));
ADD_ALL_TESTS(test_zu, OSSL_NELEM(zu_data));
ADD_ALL_TESTS(test_t, OSSL_NELEM(t_data));
ADD_ALL_TESTS(test_j, OSSL_NELEM(jf_data));
return 1;
}
/*
* Replace testutil output routines. We do this to eliminate possible sources
* of BIO error
*/
BIO *bio_out = NULL;
BIO *bio_err = NULL;
static int tap_level = 0;
void test_open_streams(void)
{
}
void test_adjust_streams_tap_level(int level)
{
tap_level = level;
}
void test_close_streams(void)
{
}
/*
* This works out as long as caller doesn't use any "fancy" formats.
* But we are caller's caller, and test_str_eq is the only one called,
* and it uses only "%s", which is not "fancy"...
*/
int test_vprintf_stdout(const char *fmt, va_list ap)
{
return fprintf(stdout, "%*s# ", tap_level, "") + vfprintf(stdout, fmt, ap);
}
int test_vprintf_stderr(const char *fmt, va_list ap)
{
return fprintf(stderr, "%*s# ", tap_level, "") + vfprintf(stderr, fmt, ap);
}
int test_flush_stdout(void)
{
return fflush(stdout);
}
int test_flush_stderr(void)
{
return fflush(stderr);
}
int test_vprintf_tapout(const char *fmt, va_list ap)
{
return fprintf(stdout, "%*s", tap_level, "") + vfprintf(stdout, fmt, ap);
}
int test_vprintf_taperr(const char *fmt, va_list ap)
{
return fprintf(stderr, "%*s", tap_level, "") + vfprintf(stderr, fmt, ap);
}
int test_flush_tapout(void)
{
return fflush(stdout);
}
int test_flush_taperr(void)
{
return fflush(stderr);
}
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